Bookbinding machine



Oct. 11, 1932. E. R. SEITER 1,882,044

BQOKBINDING MACHINE Filed Sept. 11.- 1951 s Sheets-Sheet 1 INVENTOR Oct. 11, 1932. E. R. SEITER 1,882,044

BOOKBINDING MACHINE Filed Sept. 11, 1951 6 Sheets-Sheet 2 INVENTQR W R- W BY I W I l & MbfiILATTQRNEYs.

Get. 11, 1932. E. R. SEITER 1,832,044

BOOKBINDING MACHINE Filed Sept. 11, 1931 6 Sheets-Sheet 3 HI I30 INVENTPR Oct. 11, 1932. SEITER 1,8152fi44 BOOKB INDING MACHINE Filed Sept. 11, 1951 6 sneets-shee't 4 HigA.

53 5& 52 5| 50 INVENTOR ATTORNEYS.

Oct. 11, 1932. sElTER 1,882,044

BOOKBINDING MACHINE Filed Sept. 11, 1931 6 Sheets-Sheet 5 1w #4 m as INVENTOR l6 BYW Kim A Mad: & a n (D ATTORNEYS.

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Patented Get. 11, 1932 EUGENE R. SEITEB, OF BIDGEFIELD BARK, NEW JERSEY, ASSIGNOR TO '1. it SHERIDAN COMPANY, A COR. PORATION.OF NEW' YORK eoonnr vnrne maonnvn application filed September 11, 1931. Serial No. 562,234.

This invention relates to bookbinding machines and moreespecially to mechanisms for applying backliningcomponents to round backer other books in the process of manufacture thereof;

"While the invention is applicable to various kinds. and types of bookbinding machines, the disclosed embodimentof the present invention is of a design particularly adaptable to use in what is knownas a backlining; machine, wherein each of a succession of-books is carried orradvanced through the machine, preferably step-bystep-w1se, and is treated successively bymeans for applying glue, means for applying a fibrous or crash.

lining piece, and meansfor applying paper 'backlining th-ereover, the present embodimentbeing therein applicable between the steps of applying glue and paper lining to apply and register directly uponthe glued back of the book headbands for the two'ends thereof; although certain features can be used for-applying a lining component consisting of combined headband and backlina backlining paper without headband. pecifically the .present invention is illustrated inconnection with a type of machine wherein the succession ofbooks is moved along in a horizontal path,"in a stepby-step manner, each book pausing at each place or station. where an operation is to "be performed, and the books standing with their rounded backs uppermost to receive the glue,

and the various lining components including the'headbands. Such type of backlining machine is illustrated in the patents of John Murray No. 982,438 of January 24, 1911, No.

which will be efficient and rapid inaction,

1V. & C. B.

convenient in control, and accurate in the handling and placing of the headbands upon the book. A particularobject is to afi ord'a headbanding mechanism which will feed headband strip fromone or two sources of supply, sever headbands therefrom, and apply the headbands directly to the 'lued ends of the backs of books standing with their backs exposed upwardly; A further object is to provide forthe applying of'headbands or other lining components to the books with a registering action accompanying theapplying operation whereby the components are positioned accurately in relationto the ends of the-book back. Other objects and advantages ofthe invention will be 'pointedout in the hereinafter following description of anillustrative embodiment thereof or willbe understood to those skilled in the subject. To the attainment of such objects and advantages the present invention consists inthe novel bookbinding machine or headbanding mechanism, and'the novel features of combination, arrangement and operation" herein illustrated or described.

v Figure '1 isa front elevation of a portion of a bookbinding machine embodying the present inventlon, th is View being taken from one lateral side .of'the machine, which will be termed the front side. Fig. 2 1s corresponding elevation view taken from the other or back side of the machine.

Fig. S'isa top plan'view, with certain parts shown in section substantiallyon the hori zontal line 33 of Fig. 1. r

Fig. 4 is a right hand eievation, with certain of the longitudinal parts of the machine shown in transverse'vertical section.

' Fig.5, on a larger scale than Fig. 4:, is a right elevation with certain parts shown in section on the'line 55 of F 1.

Fig. 6 is a front elevation and section, taken on the line 6-6 of Fig. '5, with the boos.

broken away for condensation of the figure. Fig. 7 is a right elevation and section taken on the line 77 of Fig. 6.

Fig. 8 is atop view and section taken on the line 8-8 of Fig. 6. x

Fig. 9 is a front elevation of certain mechanism in thelower part of the machine, not seen in Fig. 1.

The type of bookbinding machine referred to handles a succession of books B, three being shown in Figs. 1-3, and thebook being indicated also in other figures; The books are shown spaced apart and maybe supposed to be advancing intermittently toward the right in Fig. 1, each'book stopping at the position or station wherein it is tobelopers j ated upon, for example the middle book B in Fig. 1 having paused at tli e st ation at which the headband or other backlining element is to be applied. Aftera' suiiici'ent pause each book will again be advancedand the succeeding book brought into its place.

I As best seen in Figs. 4-7 each book is supported in the advancing or conveying'means with its back uppermost. For example with a round back book the round back extends horizontally along the upper side, above, the conveying means and exposed to the operating mechanism, while the body of the book is held vertical by the" advancing. means. The mechanism herein illustrated is particularly designed for applying theheadba'nding component to the book, 'andjeach book before arriving at the headbanding position is supposed to have received a coating of glue,

meaning any'suitable adhesive, indicated by the layer G in Fig. '6. Each headband H may consist of a doubled over piece of fabric, with a cord inserted in the :fold, so as to produce an ornamental bead, whlch bead is herein utilized in the guiding of each headband stripH to the point where individual headbands are to be, severed and applied to the glued back of the book. .Theheadband strip or supplyl l is clearly shown in Figs. 2, 3 and 4 as coming from a supply point or points as will be more fully described.

The mechanism of this invention is shown as mounted above a base casting or frame piece l l, which maybe a running member extending the entire length of the machine and glving support to variousmechanlsms, this base piece in turn being fixedly supported above the usual bed or foundation of the machine, omitted herefrom. N ear the back edge of the base 14 is an upstanding bracket-15 giving support to various parts of the mechanism, this showing best in Figs. 2 to 5.

. Beneath the base 14: is-shown what may be termed the main shaft 17,"which.may extend the entire length ofthe machine and serve for operating various mechanisms, and

with suitable connections to cause thestep by step advance of the successive books along their horizontal-path of travel. The main or '20Lcontrols or brings about the intermittent operating shaft 17 is shown as carrying a Series of six cams as best seen in Figs. 1, 2 and 4:. These cams will be enumerated at this point. and referred to later in connection with the trains of mechanism actuated by them. The 70 first or lefthand cam 18 on the shaft 17 co operates with afollower 77 to control the pneumatic or suction action by which the holding and releasing .of headbands is effected. The second cam 19 cooperates with a follower 66 to cause the actuation or swinging of the headband refceiver or table on which the headbands are deposited by the feeding and severing means. The third cam 80 feedof theheadband strip into severing position above the receiving table in cooperationwith' the follower 172. The fourthcanl 21 cooperates with a follower 111 for the purposelof controllingithe' movements to and from the book of the carriage and appliers which take the headbands from the tables and carry and appl them' tjo' the backs of the books. The fi th cam 22 cooperates with a follower 46 for the purpose of applying 9 vand releasing a certain book clamping device that applies pressure to hold eachibook back firmly in place during headbanding; The'sixthand last cam 23 cooperates with a follower 230 having a train of connections for operating the severing device orshearing .blades to sever the successive headbands. The

several camsv and their attendant trains of mechanisms are arranged n proper cooper 'ative'timing to effect the feeding, severing,

receiving and applying of the headbands in coordination with the application and release of suction, the clamping and releasin of the books and the intermittent travel 0 the I 7 books into and fromheadbanding position. 105

or chute between them and extending longitudinally for-the full length of the machine. Directly beneath and supporting the bookB is shown an under rail '28 with convex upper side, and as usual I adjustable vertically to receive thev concave edges'ofbooks of varying 1 width. As in said patents the front book guide wall 26 may be adjustable to and from the other or fixed guide wall to acco1nmodatebooks of varying thlckness, and in connection therewith theunder rail 28 may 1 be adjusted to a central position.

The successive booksmay be pushed or I thrust forwardby a series of traveling pins;

30lattachedto a sprocket chain 31 guided in the back guide wall 25, the pins being suit-V 1 0 stretch being shown below the rail 28.

rupted to accommodate the clamp device tov be described.

i The back edge of the book B projects above the guide walls 25 and 26, and it is desirable during the headbanding operation to compress or steady the book against deflection. For this purpose a clamping means is indicated in the form 0? back clamp member 33 and opposed to it a front clamp member 34, these members having elongatedopposmg faces and the member 34 being adapted to be moved toward the member 33 each book comes to rest at the headbanding station, so as to contact and hold the book rigid during headbanding. An adjustment for clamp member 33 is best shown in ,Fig. 7 wherein a screw 36 affords up and down adjustment in relation to a double shouldered block 87 which in turn is adjustable frontward and backward and held a screw 38.

The connections forreciprocating the front clamp member 34: are best seen in Figs. 3, 1 and 9. The frontward extending stem of the clamp member 3% is shown as connected by back toggle links 40 with toggle links llPivoted upon a double bracket d2 mounted on the front guide wall '26. In order to straighten the toggle and thereby operate the clamp the middle joint of the toggle is shown connected by a long link 43 with the front end of a cam lever 4:4 having its rear end pivoted upon a fixed axle 45 and at an intermediate point having a cam roll 46 bearing upon the periphery of the cam 22 on the main shaft, as'seen also-in Figs. 1 and 2. A strong spring 47 opposes the cam and affords a limited degree of compression on the book. The timing of the cam causes each book to be clamped while pausing the headbanding station, and to be released at the completion of the operation so as to permit its forward travel.

Each headband as it is severed is arranged to be received upon a table or retractable support 50 best shown in Figs. 3 to 5. The two receiving tables are symmetrically arranged and are indicated in their retracted position, being mounted upon a carriage which can be swung toward theback to bring the receiving tables to positions directly above the ends of the book. The carriage for the headband tables 50 may be a built: up structure con prising the following elements. A cross bar or head 51 is shown at each end, each carrying oneof the tables 50. These cross bars are slidable longitudinally along rear and front axle members 52 and 53 which in turn areinterconnected by end bars 54 forming with them a rigid square frame or carriage.

Turningfreely at the middle part of each E3 end bar 54; is a threaded shaft 55 engaging threads in the cross bars 51, each shaft having a head or handle 56 by which it may be turned, thus to adjust longitudinally the corresponding cross bar, thereby permitting each receiving table 50- to be initially set according to the length ofthe book. 1 1

The carriage so described is swlngingly V i g supported-at the top ends of lou-r vertical arms 58 and 59, connected to the axles .52'and 53 respectively. The lower ends of the arms 58 are mounted on an axle 60, and the lower ends of arms 59 onaxle 61, the axles 60' and 61 being supported in doublebrackets 62, one at each end of the system. An axle' 63 at'a midway point in the height of the front arms 59 does not represent joints but only a means to rigidify the system of supporting arms. The described system maybe swung in timed relation to the other mechanisms through a cam lever 64, 65 'fulcrumed on axle 61, and the upper arm 6 1- of which'is connected to a stud orshort axle 63 as best seen in Figs. 3 and 9, its other arm 65 extending back and downwardly (Fig. 4) and carrying a cam roll or-follower 66 resting upon the cam 19. A. spring 67 is arranged to move forwardly the carriage and recei'v-.

ing tables in opposition to the cam.

Each of the receivers or tables 50 is in the nature of a temporary holder, from which the received headband is taken by a headband applying device and subsequently ap plied directly upon the book after the retraction of the table from above-the book.

Each applying device may consist of two parts, a headband holder '70 preferably of the suction type, and a headbandshaper 9O cooperating therewith to bend or shape down one or both ends of the headband around the sides of the convex back of the book.

Referring first to the suction holders 70 each of these may consist of a narrow bar or slide movable toward and from the book, in this case vertically downward and back. Fig. 5 best shows the relativearrangement, and the details of construction are shown-in Figs. 6 to 8. Each-suction holder or bar 70 is formedwith interior suction passages 72,

of which there may be two symmetrically spaced as seen in Figs. 7 and 8 to afford an efficient hold upon the headband strip H; The top end of the suction holder bar 'ZO is enlarged as a head 73 and at the top of this is coupled a flexible pipe or pneumatic hose 7% which, as 'se'e'nin Figs. 1 and 4,-eXtends over to the back, the two flexible pipes from the respective holders being brought together by a suitable coupling from which extends .a

suction pipe controlled by a pneumatic Bill valve? 6 shown in Figs. 1 and 2; The construction of the valve will beaunderstood without illustrating details. It may be suitably connected with aisuction fan or comipress'or so as to draw air from the pipe 75 in one position and toconnect said pipe with the: atmosphere. in another 7 position. 'T he valve is shown as having a slide 7 7- foreflectring the two stated adjustments, and this slide may also constitute a follower cooperating directlywith the cam 18 on the'main shaft, the cam thrusting the slide down at one point the cycle to connect the pipe with the com- 'pressor and thus apply suction, and letting it up at another time to connect the pipe with theatinosphere and release suction. V 'Each-of the suction holders or shown as slidable'verticallywithin a block 78 as best seen in Fig. 5. The block;78 is a part of. a vertically moving carriage, the block being attached by a. screw 79 to a carriage bar 80,'which is in the nature of a bridge, extending across to the back side of the apparatus where it is fitted-to receive Tdownward and upward movements At its forward end the carriage bar 80lis formedwith a longitudinal slot 81 permitting the block 78 to be initially adjusted to exactly correct position on'the carriage. Fitted into a lug on the head 73 of the holder bar is shown astop screw 8a adapted to come down upon the block 78 in-the descent of the holder, thus limiting its descent relatively to the carriage. Beneath the block 7 8 the holder bar is shown formed with a stop 85 which limits the relative lifting movement of the bar in the carriage. A spring plunger 86 is arranged to press downwardly and maintain the bar normally in the position shown, with j the top Sdcontactingthe block. This plung-' er may'extend upwardly fromthe stop lug 85 and into 'a recess within the block 78 where it isacted upon by a spring 87 thrusting down:

. wardly thereon.

Referring next to the shaping device, comprising one or two opposite portions or wings 90, asbest seen in Fig. 5, each of these is shown in the form of a vertical bar sliding closely adjacent to the hollow bar consti+ tuting the suction holder; The narrow ends orfaces of the shaper bars are beveled inwar-dly, and these ends normally stand relatively higher than the extremity or nozzle end of the suction holder, so that when the assembly descends to the headband and later to the book the suctionholder will arrive first, thereby positioning'the headband, the shaper wings following as: the holder relatively yields, these three parts together conforming substantially tothe size and curved shape of the headband as finally attached on the book. a

. For constructionalpurposes each of the shaper bars 90 is shown as ofiset away from the holder bar and continued as "a vertical bars 70 is shank 92,:whichshank may have an enlarged head 93 at its top end, the shank sliding vertically within, a recess in a block 94. The

two blocks 9A forthe twoshaper bars are attached by screws 95 to the bridge bar 80 in bar is provided with a stop screw 97 contacting with the blOCkQe-for determining the normal position of the bar. At a point be- .lowthe block each bar is provided with a stop lug V 98 limiting the relativei upward movement oftlie bariin the block, and each lug 98 may have extending upwardlyfrom it a plunger 99 passing into the block 94s and therein acted upon by a spring 100 tending to depress the bar into the normal position shown. By this arrangement the holder bar andthe two shaper bars are relatively yield-' able as the. carriage "with blocks descends in D the applying operation. If'desired the spring 87 resisting the yielding 'of the holder'bar may be lighter than the springs 100,- so that the shaperbars will deliver, agreater pressure upon the headband to bend and shape it around the book.

Each of the carriage bars or bridges 80 is shown as a horizontal barextending rearwardly at an elevated point and this barcOhstitutes part of a descending'and rising carriagelby which the headband applier is moved down and lifted; T0 therear of the blocks at the front end of each bar, the bar is shown as extending between a pair of guides 102 which. as will'be explained later are connected with a slidable carriage longie tudinally adjustable for variations" of book length and serving to adjust the appliers and other elements accordingly. At itsrar end each carriage bar 80 is screw-attached to the top side of a sliding block 103'shiftably mounted upon but secured by set screw 104 to a longitudinal guide bar 105'. By this arrangement when the screws 10 1 are loosened, eachfof the carriage bars may be adjusted longitudinally on the guide bar 105. The guide bar 105 is fitted for vertical movement as follows. It is carried atits right and left ends by upward projections at the two ends of, a horizontal extension 7i 'member 1061provided at the top end of'a' slide 107 having a vertical dovetail engage ment with. the rear side of thefixed frame plying mechanisms. The slide 107 is shown as provided with an adjustable stop screw 108 adapted to come down uponthe bracket 15 and thus-limit the downward movement of the system. Below the slide 107 extends bracket 15, so that the up and down sliding an actuating link 109 ,the lowerend of which is pivoted to the rear end of a cam lever- 110 which lever carries a cam roll 111 engaging on the cam 21, the front end of the lever being fulcrumed on anaxle 112. I By this arrangem nt the cam, opposed by gravity,

tracted position as shown, and at other times to allow it to move or descend soas to bring the headband holder and shaper first into position to take a headband from each of the tables 50 and thereafter to carry such headbands to and apply and shape them upon the book.

Next will be described thetwo longitudi nally adjustable slide carriages 113 and 113 arranged at the left and right respectively, each carrying a pair of the slotted upstanding guides 102 already mentioned by which the headband applying devices are shifted longitudinally; and each of the carriages also supporting or giving longitudinal adjustment, as will be described, to the headband feeding devices and to the headband severing devices to adapt all of them to variations in length or position of the books. The location and construction of'the longitudmal carriages 113 and 113 are best seen in Figs. 2, 3 and 5.

Each longitudinal carriage, at its lower rear part, is formed with a slidable base or longitudinal bar 114 or 114 from which depend feet 115 and 115* supported and guided in grooves in longitudinal brackets 117 and 11! and held firmly in place by holddown plates 118. The brackets also carry longitudinal shafts or bolts 119 or 119* which are threaded to engage with depending nuts or lugs 120 or 120, so tnat by manually turning the heads of the shafts, or either of them, the respective carriages are ad justed longitudinally of the machine to accommodate the applying, feeding and severing devices to variations in length of book. Each carriage 113 or 113 extends upwardly to a substantial extent, its upper portion being split into front and back sides 121 forming between them a guiding recess 122 to re ceive the journal blocks 147 of the upper feed shaft to be described, the top of each carriage being capped by a top plate 123. In the adjusting movements of each longitudinal carriage it is held steady in its position by the elongated guided foot 115 and by the engagement of its depending lug 120 with the threaded shaft 119 and by the sliding engagement of the lower front corner 124 upon the fixed back guide wall 25; andit may be secured tightly after adjustment by set screw or otherwise. Further configuration and connections of the longitudinal carriages will be hereinafter referred to.

Describing next the supplying and feeding of headbands, the headbandsstrip H is shown as carried in rolls on a pair of supply reels or spools 130, which may have a greater width and capacity than shown, and whichare located to. supply the material to the two ends.

of the book. Referring particularly to Figs. 24, the two spools are shown as mounted loosely upon a common axle 131 removably supported in a pair of rear brackets 132.

From the upper side of each roll the strip is shown traveling at a frontward upward slant to an idler roller or pulley 133, around said pulley'and thence down and'around an under pulley or idler 134 from which the strip delivers substantially horizontally fro-ntwardly toward the severing and app-lying point. The idler pulleys or guides 133, 134 for each strip are shown mounted on a special bracket 135 extending rearwardly from the longitudinal carriage 113 or 113*, so that these guiding pulleys partake of the longitudinal adjustments. Obviously the supply spools. also might be adj ustable longitudinally either automatically or manually. Adjacent one-of the idler pulleys 133 is shown in Fig. 5 a friction device 136 of spring character bear-' ing upon'each headband strip so as to impose drag or friction thereon to maintain the strip taut between that point and the feeding devices. The pulleys 133 and 134, and other guiding and feeding parts, may be constructed with grooves at one side to conform to and receive the bead which is provided at one side of the headband strip, thus aiding in the correct guiding and feeding of the strip.

From the guide pull ys the headband strip passes frontward between upper and lower guide plates 138 and 139, one or both of which are interiorly recessed to form a guide passage for the strip. These guide plates preferably extend beyond the feeding point, having recesses to accommodate the feeding rolls, and being continued frontwardly to where they deliver the strip to the receiving tables and severing devices. The upper guide plate may be yieldable to irregularities in headband material by means of spring devices 141 shown near each end in Fig. 5.

The headband strip feeding devices comprise for each strip an under feed roll 143 and an upper feed roll 144 both of which are roughened or knurled, these rolls extending into recesses in the guide plates 133-and 139 and cooperating in imposing feeding pressure upon the strip, the rolls being rotated to thrust the strip frontwardly. This construction is best seen in Figs. 2, 3 and 5.

The two upper feed rolls 144 are both mounted on a common shaft 146 rotating in SUI : locknut 151 being shown for fixingr itsact The, leftv end of the upper feed to adjust theresilient pressure of the upper feed'rolls uponthe material. The rod acts as a stop to the rise of the block and :assuclr may be vertically adjusted by rotating it, a

j ustment. shaft 146 may be extended and provided with a hand wheel 152 '(Fig. 3) by which the shaft and feed rolls .can be manually Irotated for g feeding strip at will and for initially threading the material into the machine.

. The. upper feed shaft 146 may be rotated through a gear-153 carried upon it and mesh;

ing with a gear 154 which in turn is carried on the lower feed shaft 156 which carries the lower feed rolls 143, the gears and shafts being intermittently rotated to afford feed at the proper points of time. It will be understood that the several feed rolls have av tongue and groove or spline engagement with their respective shafts, so that all the rolls are compelled to rotatein' unison while Lpermitting longitudinal adjustment. In the case of the under feed rolls, as seen in Fig. 3,.these may be. integral with bearing sleeves turning with journals or bearings 157 mountedin the 7 member 160 of a clutch of which the driving member 161 turns loosely on the shaft and is connected with a gear 162. The clutch is adapted to-drive in forward direction only and may be of the Well known ball clutch type -with rolling elements'that wedge the.

clutch members into engagement on the forward actuation but allow the driven member to stand i'dle'on the return movement of the driving clutchfmember. The driving member 161 is shown as oscillated to an adjustable degree through a toothed vertical rack 164 meshing with the gear 162, the rack being mounted upon a sleeve 165 having means for reciprocating it as will be described.

The sleeve 165 which effects the oscillation of the feed gears surrounds a rod 167 which, as will be described. is extended and connect ed to the feed operating cam. For a particular purpose the sleeve however is arranged to have a slight vertical play or looseness on the rod, so that the rod can'reciprocate to a very slight extent in a vertical direction without causing movements of the sleeve and rac This condition is indicated by the provision at the top of the rod of an enlarged head 168, the lower side of which is shown contacting the upper side of the sleeve, but

at times isspaced slightly.- aboveyitl 'At its lower end therod 167 is shown connected to an extension rod- 169, for example by av con;

nectingpin, the top -.of the lower-rod beingsufficiently enlargedtouform a support-on which the sleeve rests; The extension rod: is

carried downwardlyv and through the machine base 14 and the lower end ofthe rodis shown connected by a link 170 with a cam lever .171,

this cam lever being fulcrumed at the front side of the machine on the axle 1-12and carry-v ing near. its center a follower or roll 17 2 which engages in the groove-20 of the feed cam. Contrary to'the other camsthe cam 20 thereforeoperates to pull down on its follower. This a'ction'is opposed by a spring 1% arranged under compression surrounding a rod piv I oted to the free end of the cam lever and with its lower end sliding through a bracket 176 which also, confines the lower end of the spring. The-tendency of the springtherefore'is to thrust upwardly therod 169, 167 and the rack 164; while the cam tends todrawthem down, thus creating the reciprocation to operate the headband feed. .It will be noticed that while the cam roll 172 operates in groove in the cam, this groove is of such width thatthe cam lever is not bound to follow the cam surface butmayat any timezbe thrust or held:downwardlyagainst the pressure of the spring, this feature permitting an adjustment of the length of reciprocation and;

therefore the, extent of headbandfeed.

The adjustment of feed and therefore of the length'of the headbands may be effected by the following devices. 7 Mounted near thev lower end of the extension rod 169 is a collar.

or stop 178 shown in; its lowered position in Fig. 5. When the cam 20 permits the spring 6 17 tto move the rod upwardly thisbrings the stop 178 into contact witha complementary stop member 179 shown in the form of a sleeve surrounding the rod. The distance of. movement of the stop collar before it strikes the stop sleeve represents the extent of feed, and this may be adjusted by relative adjust ment of one or both of the stops; A convenientmanual adjustment may be effected as The stop sleeve 179 is shown as bearing block 180 on the frame standard 15. The front. side of'the follows. slidable within a sleeve is formed into a rack181and this rack i is engaged by a pinion182 mounted on a stu d shaft 183 which takes its bearings in a pair offrontwardlyextending-ears 18 1 which ears are slit and are provided with a clamping screw 185 to draw-them together. As seen in Figs. 2 and 5 the left end of the shaft 183 carries a hand wheel 186. By this ar-;

rangementthe turning of the hand'wheel ef- 1...:

fects the vertical adj ustment of the sleeve, and one or the other of'these parts may be calibrated to indicate the length "of feed, and after such adjustment the screw 185 willbe. turned to clamp and lock the pinion shaft and thus hold the sleeve in the desired position.

For any given adjustment the'operation is that the cam 20 throws down-tho rod 169 in each cycle to its lowest point and then lets it up under pressure ofthe spring 171, the rise continuing until the stop collar 178 meets the stop sleeve 179. Subsequently the rod will again be moved down and let back to the same adjusted position.

For the purposes of a device to detect the presence-or absence of a-book and to prevent feed of headband in the latter case the rod 169 is shown as enlarged and threaded at 188 at its upper end, this threaded portion being engaged by a threaded sleeve or nut 189 having a head or flange 190 by w.-ich it can beturned to adjust it pwardly and downwardly, with a lock nut 191 for holding the adjustment. 9 These parts cooperate with a latch or finger 195 shhwn in the form of a depending lever having a notch 196 to engage the upper corner of the flange 190 at certain times, the lever being fulcrumed at 197 to a fixed frame part from w lch it depends. The latch lever 195 is shown in the release position in Fig. 5, but when shifted to holding position as in Fig. 1, this operates to hold down the rod 169 167, and prevent feeding movements. As will be explained this occurs only when aboolr is missing, the presence of each book serving to swing the latch lever away from holding posit-ion, thus releasing the-rod for its up and down reciproca-t-ion and feed. On the return or down movement of the rod the flange 190 will act against the inclined surface 198 of the lever so as to cam it fro-ntwardly and permit the flange to pass by to itsillustrated position.

When the rod 169 is in its completely lowered position the upper surface of the flange 190 will stand slightly lower than the hori- Zontal surface of the notch 196. This clearance is import-ant else the fllCblOll pres. are

v of the flange in the notch would interfere with the f'rontward retraction of the lever. From this fact appears the importance of the slight play already described bet-ween the upper rod 167 and the sle ve and rack surrounding it. Assuming that several books in sequence are missing the latch lever will remain in its holding position and the rod will vertically reciprocate through a very small movement; Due to the gap below the rod head 168 this movement is inoperative to effect even a. slight feed of headbands, otherwise when the machine is running without books the strip would be fed forward a very small amount in each cycle and small slivers of headband would be chopped off by the severing means.

The feeling or detecting of the book and the control thereby of the latch finger 195 may be as follows. A. feeler 200 is shown pivoted at 201 and taking the form of a light arm or finger extending through a slot 199 in the back guide wall25. This'feeler-is lightly pressed into the slot and book groove by a light spring 202, so that eachbook canreadily thrust the feeler out to the position. shown in Figs. 35, whereas in the absence of a book the spring throws the feeler in and efi'ects the cont-roles will be described. The

control point is one book space ahead-of the headbanding station so that when the book which has operated upon the feeler subsequently comes to position the headband. will have been properly fed for application thereto, but in the absence of the book the feed will be prevented.

The light feeler spring 202 surrounds a 202 but also by a heavier spring 205 whic exerts a tension pull upon the bar. The bar in turn is swivelled at the left end of a oontrol lever which is fulcrumed at 208 on the rear guide wall and extends beyond the fulcrum at a rightward rearward slant to where it has an offset 209 having a pivotal engagement with the latch finger 195. The springs are so related that when no book is present and the. light spring is relaxed the left end of the control lever 207 will stand frontward while its right e-nd'stands rear ward, the pull of the heavy spring 205 causing the latch finger 19.5 to swing to its holding position as shown in Fig. 4, thus preventing fced. When a book present the feeler swings back to the Fi g. 5 position thus putting tie spring 202 under compression. This changes the balance; and the heavier spring 205 is caused to stretch slightly and the control lever 207 swings suflicientlyto retract the latch finger frontwardly so that its notch 196 will clear the flange 190 of the reciprocating feed rod 169. The spring 205 in one sense holds the control lever in anon mal position in a resilient manner sothat the lighter spring operated by the. book is able to throw the parts out of holding position, and thus permit the feed of headband material to the book.

The severing of the individual headbands H from each of the strips H may be effected by the following disclosed mechanism. An under blade 215 may be relatively fixed, and cooperating with it is a movable upper blade 216. These are both mounted upon a fixed member or block 217 attached adjustably by set screws 218 upon the longitudinal carriage 113 or 112%. The swingable upper blade is mounted on the block by a spring pivot 220. Each upper blade'216 carries an operating pin 221, and these two pins are engaged by a horizontal bar 222 provided with slots 223 in which the pins are entered. When the actuating bar is moved downwardlythis opcrates both severing devices atonceto shear; the strips. The right and left ends of the bar 222 are shown mounted at the upper ends of parallel vertical slides 224,'a11 as: Y shown in Fig. 1.' and upward movements of the slides and actuating bar may be effected The downward both severing devices immediately after the headband strips have been fed frontwardly upon their respective receiving tables 50.

The following device may be employed to register each headband longitudinally to its proper position on the book and at the same time to square it accurately to the widthof the book. See Figs. 1 and 48. The registering member is shown in the form of a lever 234 or 234 extending upwardly from the registering point and having an upper arm or extension 235 beyond itspivot 236.

This transverse pivot permits the lever to swing longitudinally to bring its lower or registering end up to the book and headband,

so that the registration ofthe headband will be directly from'the book; The lever is shown as pivoted upon a bracket 237 which is rigidly attached to the-left side ofthe middle carriage block 78, this being the block that carries the suction holder 70 and descends along with other parts in the applying action. By this arrangement when the carriage 80 moves downwardly to apply the headband it carries with it the registering lever.

The registering lever 234 at its lower end,

as best seen in Figs. 5 and 6, is provided with two contacts 239 and 240, the contact 239' being in the nature of'a feeler intended to contact the end of the book and thus determine theregistering position of the lever, while the contact 240 is an adjuster adapted to contact the headband as it is being applied to the book, and to register, aline and square it to the back of the book, and adjust it longitudinally so that the bead of the headband will overhang the book to the desired extent. In the finished product the relation of the headband to the 'book is determined by the relation of the feeler 239 to the adjuster 240, and this rela'tionmay be varied at will by the following means. The feeler 239 is shown as having a threaded shank 242 engaging in a threaded aperture in the lever 234, so that the feeler can be adjusted rela:

tively tothe adjuster by rotation, the adjustmentbeing secured by a set screw 243. The headband adjuster 240 is shown provi ded with a shank 245 extending along the lever 234 and slotted to'receive a set screw 246, so that the adjuster can be set'vertically to the position of the headband.

- The registerinpoperatlon 1s thateach of the two levers 234 and 234" descend in retracted or outswung position, so as to clear reason ofthe vertical movement of the registering lever, its upper arm having a vertical edge or surface 249 and thereabove an inclined edge 250. These cam surfaces 249, 250 cooperatewith a cam roll 252 adjustably mounted in a slot 253 of a bracket 254 which 7 is rigidly attached by set screws 255 to the carriage 113 or 113 (or to the knife block 217 fixed thereon) so as to partake of longitudinal adjustments ofthe carriage made to accord with variations of book length. The cam. androller are so relatively timed, as shown, that as the lever descends during the headband applying action the roll is in contact with the vertical surface 249 until just before application, when the inclined surface 250 com-es opposite the roll 'thus permitting the spring to swing the lever, after the feeler 239 has descended to aposition opposite the end of the book. The final descending movement permits the feeler to be swung into contact with the book, the adjuster at the same time contacting and adjusting the headband just before or just as it is applied and pressed against the glued back of the book.

In describing above the respective mechanisms it is thought that the operations thereof and the relative operations and timing have been sufficiently set forth without requiring a summary of the entire action of the machine. The two headband strips are fed frontwardly over the advanced receiving tables and at the completion of the fwd the severing devices cut. off the individual headbands, which thereupon lie upon the tables. The respective appliers descend, each having its suction holder in advance of its shaper. The applying cam is so shaped that the appliers pause when the suction holders have This permits the suction to take secure hold of the headbands before the tables retract, frontwardly, after which the descent is con-1 descended to the headbands.

tinned until the headbands are applied and shaped to the previously glued back of the book.

There has thus been described a bookbinding machine or mechanism for applying booklining components or headbands to books, embodying the principles and attain- 35 t nding to enter the path of the book and the 45 ponents or headbands to the backs of'books,

, strip to be severed and applied to'the book, comprisingfeed means or rolls, a reciprocat ing feed member or rod having connections for communicating feed motion in one di- Y 3 so positioned that the latching position of thei for severin headbands from astrip, and

I means for 7 I Ing feed rolls,a one-way clutch, a rec1'proeding headband strip compris cating rack, a cam moving the rack in one dlrectlon, a sprlngmoving 1t 1n the opposlte (llrection, a stop member movmg with the rack, a stop member adjustable along the line of reciprocation, a rackon the adjustable stop, a pinion for adjusting the stop rack to alter the extent of feed, and means for lock- 7 ing the pinion and rack when adjusted.

1 3. In a bookbinding machine mechanism for automatically applying backlining compo'ne'nts or headbandsto' the backs of books,

having means for advancing the book edgewise into and from applying position with itsback exposed, and mechanism for feedingstrip to be severed and applied to the book, comprising feed means or rolls, a reciprocating feed member or rod having connections for communicating feed motion in one direction only to the feed means'or rolls,

a resilient means or spring to advance the feed rod, and a tlmed means or cam to retract it, a projection on the feedrod, and

connections to the latch comprise a lever, a

spring tending to hold the lever yieldingly in position with the latch operative, and a relatively lighter spring between the finger and lever, wherebywhe-n a-book displaces the finger a force is transmitted shifting the lever to render the latch inoperative.

'15. In a bookbinding machine mechanism for automatically applying backlining 'con1 having means for advancing the book edgewise'into and from applying position with its back exposed, and mechanism for feeding rection' only to the feed means or rolls, a resilient means or spring to advance the feed rod, and a timed means or cam to retract it, a projection on the feed rod, and a shiftable latch cooperating therewith to latch the rod near retracted position to prevent feed move ments, a detector or device feeling the presence or absence of a book, and spring connections from the detector to the latch whereby in the presence of a book the latch is shifted from latching position; the latch being the detector connections."

116. In bookheadbanding mechanism, a reciprocating rod ormember with connections therefrom to feed the headband material in termittently to book position, timed means to advance and retract the rod with ayielding,

element thereinpermitting the rod .to be restrained in retracted position, a restrainer or latch arranged to holdthe rod in retract ed position and thus prevent'feed, and a feel er operatedcby' the presence of a book,'with connections to the latch for withdrawing it to permit reciprocation of the rod and feed of material. r I

17. In book headbanding mechanism, a, rec'ip'roca'ting rod or member with connections therefrom to feed the headband material intermittently to book position, timed means tofadvance and retract the rod with a yielding' element therein permitting the rod to be restrained in retracted position, a restrainer or latch arrangedto'hold the rod in retracted position and thus prevent feed, and a feeler operated by the presence of abook, with resilient connections to the latch for of the 'rodfrees the latchforwithdrawal by withdrawing ittopermit reciprocation of the rod and feed'ofmaterial, the retracted and latched positions-of the rod being slight 1y different, whereby upon full retraction the latch is freed to-be withdrawn by the resilient connections from the book feeler. o A '18, A mechanism as in-claim l7 and wherein. in the connectionsfrom the rod to the headband material "is a slight lost motion suflicient to offset the vibration'of the rod between retracted and latched positions,

whereby such vibration will not be trans-- shortfeed actions in mitted'as successive the-absence of books, p U '19. book headbanding mechanism, means for applying a headband to a book, and a movable registering member or lever coming into operation as the headband is being applied, said member having a feeler coming into contact with the book end, thus positioning the member, and anadjuster thereby caused to contact the headband,

square it to the book and adjust it to overhang 'the .bookf end vby a predetermined amount; the feeler having an jadjustable mounting upon the member to vary the registering position of themember relatively to the book and thereby the position of the headband upon the book.

, 20. In book headbanding mechanism, means for applying'a headband to a book, and a movable registering member or lever coming into operation as the headbandis being applied,v said memberhaving a feeler coming into contact with the book end, thus positioning thefmemberj, and an adjuster thereby caused to contact the headband,

I with the headband applying means, and the ad uster being adjustably mounted on said member for setting it to Contact the headband.

been duly si In testimony whereof, this specification has gned by:

EUGENE R. SEITERA 

